Electrical Schematics (Industrial Controls) from Udemy

What's inside

Learning objectives

How to read, understand & design schematics
How to read control panel drawings
Concept of power and control circuits
Designing a circuit from scratch : starter circuits
Indication circuits
Local remote & auto manual operation
Basics of electrical interlocking
Metering circuits

Learn certain key switchgears
Electrical symbols
Cross-referencing and designations in schematics
Starter circuit
Concept of no & nc contacts
Contactor's contact numbering
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How to read, understand & design schematics
How to read control panel drawings
Concept of power and control circuits
Designing a circuit from scratch : starter circuits
Indication circuits
Local remote & auto manual operation
Basics of electrical interlocking
Metering circuits
Learn certain key switchgears
Electrical symbols
Cross-referencing and designations in schematics
Starter circuit
Concept of no & nc contacts
Contactor's contact numbering
Show more
Show less

Syllabus

Read and Understand Template ; Learn 25 - 30 electrical symbols used in schematics

Welcome to this basic course on Electrical Schematics.

You will learn concept of building power & control circuits. And by the end of this course you will be able to read, understand and design schematics.

In this lecture, we will do a quick overview of the course. This course has 6 sections:

Introduction & Concept Building
Switchgear details
Basic Power and Control Circuit
Interlocking Circuits
Metering Circuits
Application and Practice

So, let’s begin our learning!!

Welcome to this lecture on basics of reading and understanding schematic.

Here we will study

What is schematic ?
How is it represented ?
We will study about the template so that we will be able read and understand details about any given schematic.

We will be studying about the details that can be found in a template, about the schematic.

So go ahead, and get started!!

Parts of Templates.

Revision and Remark

Lets continue our learning, and let us further understand more details about schematics.

We will learn :

What are schematics composed of ?
On what basis is a schematic is drawn?

And before, we go any deeper into learning to read, understand and design schematics, we will learn

Where are these schematics used ?
Why are they needed?

Welcome back now that we have a basic understanding of

What schematics are ?
What are they composed of ?
How are they represented?
Where are they used?
Why are they needed?

We will now move on the most basic building block of schematic - "The Symbols". Here we will cover the following symbols:

Wires - Connected & overlapping wires
Motor
3-Phase supply

Note there are some of the very basic and most frequently used symbols while designing a schematic.

Connected wire Symbols

Here we will be studying about the most frequently symbols that help in building logic in the circuit : NO & NC contacts & coil

Then we will move on to symbols of switching devices such as

Isolator
Circuit breaker
Emergency switches
Contactor
Transfer switches
Selector switches, Ammeter & Voltmeter selector switch
Limit switch
Toggle switch

Symbols, Contacts

In this lecture we will be studying about the symbols of Push buttons and Indicators.

We will also learn about the difference between momentary and latching action function.

In this lecture we will be studying about the symbols of Instrument transformers and various types of meters.

Current Transformers (CT's) & Potential Transformers (PT's)
Ammeter
Voltmeter
kWh meter
Frequency meter etc.

Transformer Symbol

In this lecture we will be studying about the symbols of various types of protection devices used in the circuits such as

Fuse
Over voltage relay
Under voltage relay
Thermal overload relay
Timer
Thermostat
Terminals etc.

Relay Symbol

Quick Recap of the topics cover in section 1.

Basic of Schematics
Template
Symbols - Switching devices , meters , indicators protective devices etc.

Terminal Symbol

Understand the role played by certain switchgear and learn where and when can these switchgears be used while designing circuits.

Welcome to Section 2 of Electrical Schematic course.

We will first understand what is on load and off load application.

Then later in this section we will learn more about certain key components to understand where, and why, symbols of these components must be placed in a schematic.

We will cover the following switchgears:

Switch – Isolators
Circuit Breakers
Contractor and contacts
Lamps and Push buttons
Meters and Protection devices

On load device.

In this lecture, we begin with our study on the first switchgear i.e. Isolators

We will learn

what is an isolator ?
Understand where Isolators can be used.

Keeping our understanding of the lesson learnt in section 2.1, we will learn whether the Isolator is an ON load device or an OFF load device. So, lets us being our learning.

Isolator

In the previous lecture we learnt about the Isolator. We will now learn about Circuit Breakers.

We will learn the definition of circuit breaker and its review its symbol. Then we will understand the difference between and Isolator and circuit breaker.

We will also see the different types of circuit breakers based on their application

VCB
SF6
ACB
MCCB
MCB.

Circuit Breaker and Isolator

We will learn about contactor and contacts. This one of the key switchgears used to develop logic and control in the circuit.

We will learn about

Power contactor
Auxiliary contactor
Contact numbering
Application of contactor
Limitation of contactor

Aux. contactor

In this lecture we will learn more about Indicators. Then we will move on to meters and finally learn why instrument transformers are need to used with meter & certain protective devices.

Switchgear Details: Indicators, Metering & Instrument Transformers

In this lecture we will learn more on protection devices and learn that certain protection devices are directly connected in the power circuit whereas others are connected using instrument transformer.

Thermal overload relay.

Section 2.7 : Recap

Design Schematic - Add controls & indication in circuits ; Define power & control circuit ; Use designation & cross-referencing while designing as well as use them to read & understand circuits.

Welcome to this section on designing of schematics. In this section we will learn to develop simple circuits. While learning to develop circuits we will come across various concepts used to design schematics. But before we can start designing schematics there certain basic concepts about the schematic that we should be aware of.

In this lecture we will learn about the Basics of power and control circuit. We will learn

What is power circuit ?
What is a control circuit?
What is the difference between them ?

So, lets begin our learning.

Power and Control Circuit

Welcome to this lecture on Power Circuit.

Here we will learn to design simple power circuits. We will use all the basic concepts that we have learnt till now to start designing schematics.

We will go in step by step method. Hence, we will be first defining the requirement and then start designing it.

Therefore, we recommend you to keep a pen and paper handy with you from now on. You may pause the lecture in between and try designing the circuit based on the requirement. This will help you learn & understand faster.

In this lecture we will get a basic understanding of the Direct on line starters and what are the other types of motor starter circuits that are used for starting a motor.

DOL circuit

Welcome to this lecture on DOL circuits. In this lecture we will learn:

How to design a basic DOL Circuit?
And why are motor starters required during starting of a motor?

Overload Protection & Switching Device

Section 3.3.2 : DOL Circuit Part 2 : Overload Protection to the motor

Overload Protection

Section 3.3.3 : DOL Circuit Part 3 : Hold-on Contact

Hold-on Contact

Section 3.3.4 : DOL Circuit Part 4 : Controls of Motor

Stop Push Button

Section 3.4 : Reading and understanding schematics

Reading & understanding Schematics

Section 3.4.1 : Reading and Understanding Schematics.

Legends

Section 3.5 : Indication circuits

Control Circuit

Section 3.6 : Local and Remote Operation

Local and Remote Operation

Section 3.6.1 A : Local and Remote Circuit

Section 3.6.1 B : Local and Remote Circuit

Remote Indication

Section 3.6.2 : Terminals and Termination

Section 3.7 : Auto Manual Operation

Section 3.8 : Selector Switches in Circuits

Section 3.8.1 : Auto Manual Selector Switch

Section 3.8.2 : Incorporating L/R & A/M Selector switch

Develop basic electrical interlocking circuits

Welcome to this section of basics of interlocking. Here we will be covering

What does interlocking mean
Type of interlocks

Application of reversible motor.

In this lecture, we will understand and develop an electrical interlocking circuit in a step by step method.

Electrical Interlocking

Design metering circuits

Welcome to this section on Metering circuits.

In this lecture we will be covering basics of meters and understand how voltmeter and ammeter can be connected in a circuit.

Ammeter

Here we will use the lesson learnt in the previous lecture and develop basic metering circuit.

Calculate current

Section 5.3 : Instrument Transformers in Metering Circuits.

Section 5.4 : Incorporating Instrument Transformers in Metering Circuits

Students will know where schematics are applied or used ; They will be able practice and apply their knowledge and design schematics on their own

In the lecture, we will understand where schematics find extensive application.

Schematics in Switchboards

Welcome to the last lecture, we will sum up all the concepts that we have covered throughout this course and we will also share what is the next step to do after completing this lecture.

Practice question on designing schematic

Next Step

Good to know

Know what's good

, what to watch for

, and possible dealbreakers

Develops foundational understanding of how to design electrical schematics, which is a core skill for electrical engineers and technicians

Taught by Iconic Educademy and Iconic Techno, who are recognized for their work in electrical engineering and technical training

Explores the design of circuits for power and control systems, which is highly relevant to industry

Covers a range of topics that are essential for understanding electrical schematics, from symbols and switchgears to interlocking circuits and metering circuits

Requires no prior knowledge of electrical schematics, making it accessible to beginners

May require a basic understanding of electrical principles and concepts in order to fully grasp the material

Activities

Be better prepared before your course. Deepen your understanding during and after it. Supplement your coursework and achieve mastery of the topics covered in Electrical Schematics (Industrial Controls) with these activities:

Gather and organize course materials for future reference

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Organizing your course materials will help you retain information more effectively and make it easier to review and refer to in the future.

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Collect all lecture notes, assignments, and other handouts
Organize the materials into logical categories
Store the materials in a convenient and accessible location

Review basic electrical concepts related to schematics

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Refreshing your understanding of basic electrical concepts will provide a solid foundation for comprehending and designing electrical schematics effectively.

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Review concepts such as voltage, current, and resistance
Understand Ohm's Law and its applications
Familiarize yourself with basic electrical components

Explore online tutorials on specific electrical schematic design topics

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Seeking out and following guided tutorials will provide you with additional support and insights into specific aspects of electrical schematic design, helping you deepen your understanding and master the subject matter.

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Identify specific topics you want to explore
Search for reputable online tutorials
Follow the tutorials step-by-step
Practice the concepts and techniques

Four other activities

Expand to see all activities and additional details

Show all seven activities

Practice reading and interpreting electrical schematics

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Regular practice in reading and interpreting schematics will enhance your ability to understand and analyze electrical circuits, which is crucial for effective troubleshooting and design.

Browse courses on Electrical Schematics

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Obtain a variety of electrical schematics
Identify different symbols and components
Trace the flow of power and signals
Interpret the overall functionality of the circuit

Participate in peer study sessions to discuss schematic design concepts

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Engaging in peer study sessions will allow you to share knowledge, ask questions, and discuss different approaches to schematic design, enhancing your understanding through collaborative learning.

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Form a study group with classmates
Choose specific topics to focus on
Prepare and present your understanding
Engage in discussions and Q&A sessions

Design a schematic for a specific application

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Creating a schematic for a specific application will help you apply the concepts and principles learned in the course to a practical scenario, reinforcing your understanding of schematic design and its application in industrial controls.

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Identify the application and define the requirements
Select appropriate symbols and components
Draw the schematic using industry standards
Review and test the schematic for accuracy and completeness

Attend a workshop on advanced schematic design techniques

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Attending a workshop on advanced schematic design techniques will provide you with hands-on experience and insights from experts, enabling you to expand your knowledge and master the subject matter.

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Identify and register for a relevant workshop
Attend the workshop and actively participate
Engage with the instructors and fellow attendees
Apply the learned techniques in your own projects

Career center

Learners who complete Electrical Schematics (Industrial Controls) will develop knowledge and skills that may be useful to these careers:

Electrical Engineer

Electrical Engineers design, develop, test, and supervise the installation of electrical systems. They also maintain and repair electrical equipment. This course can help electrical engineers to develop the skills they need to read and understand electrical schematics, which are essential for designing, installing, and maintaining electrical systems.

See salaries and explore the career path for Electrical Engineer

Electrical Designer

Electrical Designers design, develop, and test electrical systems. They also prepare electrical drawings and specifications. This course can help Electrical Designers to develop the skills they need to read and understand electrical schematics, which are essential for designing electrical systems.

See salaries and explore the career path for Electrical Designer

Controls Engineer

Controls Engineers design, develop, and implement control systems. They also maintain and repair control systems. This course can help Controls Engineers to develop the skills they need to read and understand electrical schematics, which are essential for designing, installing, and maintaining control systems.

See salaries and explore the career path for Controls Engineer

Automation Engineer

Automation Engineers design, develop, and implement automation systems. They also maintain and repair automation systems. This course can help Automation Engineers to develop the skills they need to read and understand electrical schematics, which are essential for designing, installing, and maintaining automation systems.

See salaries and explore the career path for Automation Engineer

Power Systems Engineer

Power Systems Engineers design, develop, and operate power systems. They also maintain and repair power systems. This course can help Power Systems Engineers to develop the skills they need to read and understand electrical schematics, which are essential for designing, installing, and maintaining power systems.

See salaries and explore the career path for Power Systems Engineer

Electrical Maintenance Technician

Electrical Maintenance Technicians maintain and repair electrical systems. They also troubleshoot electrical problems. This course can help Electrical Maintenance Technicians to develop the skills they need to read and understand electrical schematics, which are essential for maintaining and repairing electrical systems.

See salaries and explore the career path for Electrical Maintenance Technician

Electrical Project Manager

Electrical Project Managers plan and manage electrical projects. They also oversee the installation and maintenance of electrical systems. This course can help Electrical Project Managers to develop the skills they need to read and understand electrical schematics, which are essential for planning and managing electrical projects.

See salaries and explore the career path for Electrical Project Manager

Electrical Inspector

Electrical Inspectors inspect electrical systems to ensure that they are safe and compliant with codes. They also investigate electrical accidents. This course can help Electrical Inspectors to develop the skills they need to read and understand electrical schematics, which are essential for inspecting electrical systems.

See salaries and explore the career path for Electrical Inspector

Electrician

Electricians install, maintain, and repair electrical systems. They also troubleshoot electrical problems. This course can help Electricians to develop the skills they need to read and understand electrical schematics, which are essential for installing, maintaining, and repairing electrical systems.

See salaries and explore the career path for Electrician

Electrical Drafter

Electrical Drafters create electrical drawings and specifications. They also assist Electrical Engineers and Electrical Designers. This course can help Electrical Drafters to develop the skills they need to read and understand electrical schematics, which are essential for creating electrical drawings and specifications.

See salaries and explore the career path for Electrical Drafter

Industrial Electrician

Industrial Electricians install, maintain, and repair electrical systems in industrial settings. They also troubleshoot electrical problems. This course can help Industrial Electricians to develop the skills they need to read and understand electrical schematics, which are essential for installing, maintaining, and repairing electrical systems in industrial settings.

See salaries and explore the career path for Industrial Electrician

Electrical Consultant

Electrical Consultants provide advice and guidance on electrical systems. They also design and develop electrical systems. This course can help Electrical Consultants to develop the skills they need to read and understand electrical schematics, which are essential for providing advice and guidance on electrical systems.

See salaries and explore the career path for Electrical Consultant

Electrical Supervisor

Electrical Supervisors supervise the work of Electricians and other electrical workers. They also ensure that electrical systems are safe and compliant with codes. This course can help Electrical Supervisors to develop the skills they need to read and understand electrical schematics, which are essential for supervising the work of Electricians and other electrical workers.

See salaries and explore the career path for Electrical Supervisor

Electrical Technician

Electrical Technicians install, maintain, and repair electrical equipment. They also troubleshoot electrical problems. This course can help Electrical Technicians to develop the skills they need to read and understand electrical schematics, which are essential for installing, maintaining, and repairing electrical equipment.

See salaries and explore the career path for Electrical Technician

Electrical Apprentice

Electrical Apprentices learn the trade of Electrician. They work under the supervision of experienced Electricians. This course can help Electrical Apprentices to develop the skills they need to read and understand electrical schematics, which are essential for learning the trade of Electrician.

See salaries and explore the career path for Electrical Apprentice